C#: Display the pattern like a diamond

Last update on December 20 2024 12:41:01 (UTC/GMT +8 hours)

Write a program in C to display the pattern like a diamond.
The pattern is as follows :

      * 
     *** 
    ***** 
   *******
  *********
   *******
    *****
     ***
      *

C# Sharp: Display the pattern like a diamond

Sample Solution:-

C# Sharp Code:

using System;  // Importing necessary namespace

public class Exercise31  // Declaration of the Exercise31 class
{  
    public static void Main()  // Main method, entry point of the program
    {
        int i, j, r;  // Declaration of variables i, j, and r as integers

        Console.Write("\n\n");  // Displaying new lines
        Console.Write("Display the pattern like a diamond:\n");  // Displaying the purpose of the program
        Console.Write("-----------------------------------");  // Displaying a separator
        Console.Write("\n\n");  // Displaying new lines

        Console.Write("Input the number of rows (half of the diamond): ");  // Prompting the user to input the number of rows
        r = Convert.ToInt32(Console.ReadLine());  // Reading the number of rows entered by the user

        // Loop to print the upper part of the diamond pattern
        for (i = 0; i <= r; i++)
        {
            for (j = 1; j <= r - i; j++)
                Console.Write(" ");  // Printing spaces before the asterisks

            for (j = 1; j <= 2 * i - 1; j++)
                Console.Write("*");  // Printing asterisks to form the upper part of the diamond

            Console.Write("\n");  // Moving to the next line after each row
        }

        // Loop to print the lower part of the diamond pattern
        for (i = r - 1; i >= 1; i--)
        {
            for (j = 1; j <= r - i; j++)
                Console.Write(" ");  // Printing spaces before the asterisks

            for (j = 1; j <= 2 * i - 1; j++)
                Console.Write("*");  // Printing asterisks to form the lower part of the diamond

            Console.Write("\n");  // Moving to the next line after each row
        }
    }
}

Sample Output:

Display the pattern like diamond:                                                      
-----------------------------------
Input number of rows (half of the diamond) :8                                                                                                         
       *             
      ***                           
     *****                           
    *******                         
   *********                        
  ***********                        
 *************
***************                   
 *************                      
  ***********                     
   *********                        
    *******                  
     *****                              
      ***                
       *

Flowchart:

C# Sharp Code Editor:

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